Bass Effects Rigs

A bass effects rig is everything between your bass and the amp or PA: the pedals, preamps and power supplies that shape your tone, plus the routing that ties them together. Where a guitar rig often lives on color, a bass rig is usually built around protecting the low end, which is why so many bass pedals are preamps, compressors and drive units designed to keep the fundamental of each note intact.

The range of what counts as a bass rig is wide. At one end sits a single pedal like the Origin Effects BASSRIG Super Vintage, which Origin describes as "a complete vintage bass amp in a pedal," with an all-analog cabinet simulator and DI output built in¹. At the other end are multi-effects floor units like the BOSS ME-50B, which puts a full set of bass effects in one rugged unit², and synth systems that replace the bass sound entirely. Origin Effects positions its BASSRIG line as "the new centrepiece of a direct-to-PA bass setup," noting that the analog pedals "take pedals like a real valve amp"³.

What a bass effects rig is made of

Most bass rigs share the same building blocks, whatever the brand on the enclosure:

• Preamp and DI pedals, which recreate an amp's front end and feed a PA or interface. The Origin Effects BASSRIG Fifteen is an all-analog amp recreation preamp and DI pedal based on the B15, "a little combo that became a studio staple"⁴⁵. The BassRig '64 Black Panel, one of two bass overdrive and preamp pedals Origin launched together, is aimed at home, studio and stage players alike⁶.
• Compressors, which even out note volume and add sustain. The Empress Bass Compressor uses FET compression "that preserves your instrument's original tone while adding dynamic control"⁷, and the Lehle RMI Basswitch Dual Band Compressor houses two compressors for dual-band compression, built to process signals from both passive and active pickup systems⁸.
• Drive and distortion, from the Shift Line A+ Buzz V.2 Gray and Deep Blue bass drive pedals⁹¹⁰ to fuzz like the GUPtech Bass Babe, a synth fuzz "made for Bass and Guitar"¹¹.
• Filters and synth-style effects, like the DigiTech Bass Synth Wah envelope filter, which can run inline or parallel with your bass tone¹².
• Reverb and ambience, such as the EBS DynaVerb Studio Edition, whose internal parallel/serial routing switch is designed for amp effects loops and multi-pedal chains¹³.
• Power supplies, which T-Rex Effects makes alongside its pedals for guitar and bass players¹⁴.

If you are starting from scratch, the guides on building a pedalboard and powering a pedalboard cover the practical side of assembling these blocks.

Signal chain order and parallel routing

The order you plug bass pedals into each other changes the result, just as it does on guitar. The general guide to pedal signal chain order applies, but bass adds one concern of its own: anything that clips or filters the signal can eat the low end, so where a compressor sits relative to your drive pedals matters more than it does for guitar.

A compressor usually goes early, so it evens out the signal before it reaches pedals that track dynamics. The Empress Bass Compressor adds a wrinkle to that: it has a 3.5mm TRS send and return for sidechain compression, which lets you control how the compression is triggered⁷. Dual-band designs take a different approach. The Lehle RMI Basswitch Dual Band Compressor splits the work between two high-end compressors, which the maker says enables "effective and melodious compression of your bass sound" across the frequency range⁸.

Parallel routing

Parallel routing splits the signal so one path stays clean while the other goes through effects, then blends them back together. For bass this is a common way to keep the low end solid under heavy distortion or synth effects. The basic shape looks like this:

Several pedals and units build this in. The DigiTech Bass Synth Wah "can be run inline with your current pedals, or parallel with your bass tone to create unique combinations of bass and synth sounds"¹². The GR Bass DUAL Pre has a parallel output for a clean signal, plus a complete compressor on both channels¹⁵. The Source Audio Aftershock Bass Distortion offers "a range of signal routing possibilities like effects send, multi signal mixing, or mono signal splitting"¹⁶, and the Hartke Bass Attack 2 carries 1/4" parallel and effect outputs¹⁷.

The Radial Bassbone OD shows another use for blending: connect the TRS stereo output from a dual-element bass and its blend switch combines a magnetic pickup with a piezo, "acting like a mini 2 channel mixer"²¹. At the software and modeler end, Positive Grid's BIAS X supports dual-amp configurations, stereo rigs and parallel processing chains²², and the TONEX Rig's Parallel Comp mode blends compressed and dry stereo signals "for sustain without losing attack"²⁰. For the wider picture of running two paths, see the guide to stereo pedal rigs.

Divided pickups and bass synth systems

A divided pickup is not a normal pickup. As BOSS's own history article explains, "a Divided Pickup is divided into discrete parts that capture a separate signal for each string. It then outputs them separately" to a guitar synth or V-Guitar unit, and it is not designed to produce sound directly²³. That per-string information is what lets a synth or modeling unit track each note cleanly, which matters even more on bass, where low notes are hardest for pitch tracking.

Compatibility is broad. The GK pickup works with all Roland GR models from the GR-1 onwards, BOSS SY-series synths that require a GK pickup, and the Roland VG range²⁵. On the synth side, the BOSS SY-1000 Guitar Synthesizer is the current flagship. BOSS describes it plainly:

Its custom DSP delivers six times the processing muscle of the earlier SY-300²⁷, and it carries refreshed instrument modeling with a large selection of electric, acoustic and bass guitar types²⁷²⁶. It also includes the VIO Guitar instrument, which alters the input signal's envelope and harmonic characteristics to create tones reminiscent of bowed instruments²⁶. Editing happens through a large LCD with knob-based control, where you can change routings and create parallel chains, and Variation libraries save favorite setups²⁶. For players who want a simpler entry point, BOSS's Doug MacArthur suggests "using the simple GK-5 (or GK-5B for a bass) that you can easily attach to the top of your guitar"²⁸. The wider world of these pedals is covered on the synth pedals page.

Guitar pedals, bass pedals and DIY

The line between guitar and bass pedals is thinner than it looks. Recovery Effects says of its Pearl: "This pedal was created for bass, but you can also plug your guitar into it to make your low-end dreams come true!"²⁹. Makers like GUPtech design synth fuzz for bass and guitar together¹¹. The practical difference is usually low-end retention: bass versions of a circuit, or a clean blend, keep the fundamental from disappearing under clipping. The bass pedals page collects the bass-specific versions by effect type.

There is also a DIY route. General Guitar Gadgets sells a stompbox kit, project and PCB replica of the Ibanez BP10, which the maker calls "an excellent sounding bass compressor"³⁰. Building one is covered in the guide to DIY pedal kits and mods.

Pedals on this page

Origin Effects BASSRIG Super Vintage

Origin Effects · Preamp

$489 list price

Boss Me-50B Bass Multi-Effects

Boss · Bass

GUPtech Bass Babe

GUP Tech · Fuzz

DigiTech Bass Synth Wah

Digitech · Filter

Lehle RMI Basswitch Dual Band Compressor

Lehle · Bass

EBS DynaVerb Studio Edition

EBS · Bass

Empress Bass Compressor

Empress Effects · Bass

$249 list price

Shift Line A+ Buzz

Shift Line · Bass

GR Bass DUAL Pre

GR Bass · Bass

Source Audio AfterShock Bass Distortion

Source Audio · Distortion

Hartke Bass Attack 2

Hartke · Preamp

BOSS SY-1000

Boss · Synth

$939 list price

Ibanez BP10 Bass Compressor

Ibanez · Compressor

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